/**
 * Created by Wonderchief on 2017/1/12.
 */
//跨域处理
module.exports = function (req, res, next) {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Headers', 'Content-Type, Content-Length, Authorization, Accept, X-Requested-With');
    res.header('Access-Control-Allow-Methods', 'PUT, POST, GET, DELETE, OPTIONS');
    if (req.method == 'OPTIONS') {
        res.send(200);
    } else {
        next();
    }
};